Car-coupling



, 2 Sheets-Sheet 1.

P. BROWN. 1

GAR ooUPLING. Patented 0012.13, 1891.

(No Model.)

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@Wha/now Mam l 2 Sheets-Sheet 2. P. BROWN.

GAR GUUPLING.

(NQ Model.)

No. 461,312. Patented Oct'. 13, 1891.

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Y UNITED STATES PATENT O'FEicE.

vPERRY BROlVN, OF SHARONwVlLLE, OHIO.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 461,312, dated October 1S, 1 891. Application tiled December 20, 1890. Serial No. 375,295. (No model.)

To all whom zit-may concern.-

Be it known that I, PERRY BROWN, a citizen of the United States, residing at Sharonville, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Car-Couplings, of which the following is a specification, reference being had therein to the accompanyingvdrawings.

This invention relates to improvements in that class of couplers known as twin-jaw couplers, and more particularly to the coupler shown in my patent, No. 434,763, dated August 19, 1890; and the invention consists in the peculiar construction, arrangement, and combinations of parts hereinafter more particularly described and then definitely claimed.

In the accompanying drawings, Figure 1 is a plan of a' coupling constructed according to inyiinprove1nent,with the J'aw shown in different positions in dotted lines. Fig. 2 is acentral vertical longitudinal section of the same. Fig. 3 is a vertical section through the linex :c in Fig. 1. Fig. 4 is a similar section through the line y y in saine figure. Fig. 5 is a perspective view of the'pivoted jaw detached. Fig-6 is a similar view of the locking-pin. Fig. '7 is a side view of the front of the draw- Fig. 8 is a front view of the draw-bar with the pivoted jaw removed. Fig. 9 is a perspective view ot' a hardened plate detached. Fig. 10 is a central vertical section through the knuckle of the pivoted jaw on a larger'scale. Fig. 1l is a detail showing a horizontal section through the pivoted jaw and pins.

Referring now to the details of the drawings by figures, 1 represents the body of the draw-bar, having at its rear end a rib 2, behind which is set a cushion 3, of rubber 0r other suitable material, which is held in place by a cap 4, whose forward edges are bent down over the rib 2 to hold the cap in position and to .prevent the same spreading under great pressure. The front of the drawbar is formed with recesses, leaving ribs 5, which terminate near the front of the fixed jaw of the coupling, leaving that portion solid. The ears 6, instead of being cast solid, as in my previous patent, are cored out, as shown in Fig. 4, leaving ribs 7 to support the pivot-pin 8.

In the mouth of the draw-bar is a swinging stop 12, hung in forks 13, which are attached to the top of the mouth of the draw-bar in any desired manner, but preferably by means of nuts, as shown in Fig. 3. This swinging stop supports a coupling-pin 14, which maybe used with an ordinary coupling-link. The

pivoted jaw 1l has no locking-arm, and in draw-bar at both ends and also at its center Oropposite the knuckle of the pivoted Jaw. On the top ot the knuckle 15 of the pivoted Jaw is formed two notches 19 and 20, whose ohject will be hereinafter more fully explained.

The body of the J'aw is cored out, as shown in Fig. 5 and in dotted lines in Fig.' 1, forming a series of ribs 21 on the inner side of the jaw. The outer edge of the same is protected by a hardened or chilled plate 22, providedwith ribs 23, whose ends rest against the front edge of the body of the jaw and thus take oft the strain from the rivets 24, which are used to hold the plate in place. The knuckle 1o is also cored out, forming ribs, as shown in Fig. 10.

'.rlhe operation is as follows: Supposing two cars supplied with these couplings are to b e connected, one of the jaws is set inthe posishown in full lines in Fig. 1, with the locking-pin resting in notch 20, and -then, when the couplings `touch, the fixed Jaw of one touches the pivoted jaw of the other and forces it inward to the locked position, so that the two pivoted jaws interlock in a in apnner well understood. Before the pivoted Jaw fully reaches its closed position the p1n 18 begins to descend and will thus hold the Jaw 11 locked, although neither it nor the pin 18 has yet reached its normal acting position. This will be found very useful in coupling on a sharpu curve, which could not be done if the edge of the notch 16 and the edge of the wedge on the pin were both vertical.

If a car with an ordinary pin-and-link coupling is to be coupled to acar having one. of my couplers, the pivoted jaw is thrown wide open, as shown in dotted lines in Fig. 1, and

`4, this pin is supported by the metal of the y ICO the pin 18 is set in the notch '19,Which securely fastens it in that position.k The pin 14 is then raised, allowing the stop 1 2 to swing under it, and the former is then allowed to fall in the latter, as shown in Fig. 8. If now the link of a common coupler is caused to enter the mouth of the draw-bar, it will strike the tongue hanging from thebottom of stop 12 and push it upward,thus allowing the pin let to drop through the link and hold the same in a manner Well understood.

The object of coring out the ears and pivoted jaw is not, as might be supposed, to simply make them lighter; butI have found that in malleable-iron castings (which I propose to use for my couplings) the strength resides in the skin or outer surface of the same, and that the inner metal is of comparatively little strength. For this reason I so core out.

my castings as to make a series of ribs, thus providing a large amount of surface, which could not be had if the castings were solid.

fixed jaw. By the use of cap 4c the cushion 3 is permanently fastened in place and isprevented from spreading under great pressure.

It will be seen that the locking-pin is not only supported at both ends, but is also supported along` its entire length against the force exerted by the pivoted jaw, as shown atin Fig. 3. This Will be found to add much to thedurability and strength of the coupling, as great strain is exerted on this pin, especially when used on the first car of a long train. It willalso be seen that the mouth of the coupling, into which the link enters in coupling with an ordinary link, is closed not only on the side oft-he fixed jaw, but on the `side of the movable jaw, which tends to keep 2. In a pivoted-jaw coupling, a locking-pin therefor inclined or Wedgeshaped on its acting edge, and a pivoted 'jaw "having an in-` clined notch coacting With said inclined or Wedge-shaped pin, substantially as described.

In a coupling, a draw-bar and a pivoted jaw, in combination with a vertically-moving locking-pin having a projection 17 on one side to engage With the pivoted jaw, andithe major part of its body opposite the knuckle of the pivoted jaw surrounded and support-ed by the metal of the draw-bar, substantially as described. l

4. A coupling having a fixed jaw at one side and ears at the other, in combination with a jaw pivoted between said ears, having a rounded knuckle, a recess for locking the same contained Within the curved end of said knuckle and opening from the same, and a locking device set in said recess supported vabove and below the knuckle, substantially Y as described.

For the same reason I make the ribs on the 3 l With a solid outer surface and provided with 5. A pivoted-jaw draw-bar having a kn uckle a series of recesses forming vhorizontal ribs l cast around the hole for the pivotal pin, substantially as and for the purpose specilied.

G. A jaw for a draw-bar provided With a se ries of ribs on its inner face, and a hardened or chilled plate bearing against said ribs to receive the wear, substantially as described.

7. A jaw for adraW-bar provided withase- 4ries of ribs on its inner face, and a Wearingplate resting against said ribs land between` the top and bottom edge of said jaw, substantially as described.

S. A jaw for a draw-bar provided with a series of ribs on its inner face, and a Wearing; plate resting against said ribsv and provided with ribs to stiften the same and abutting against the inner edge of the jaw, substan- .I tially as shown.

In testimony whereof I aiiix my signature, `in presence of two Witnesses, this 19th dayot' December, 1890.

PERRY BROWN.

Witnesses:

T. J. W ROBERTSON, MILTON A. WHITE. 

